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Publication Details

Methods for Preventing ASR in New Construction Results of Field Exposure Sites

General Interest: provides practical guidance to engineers responsible for the day-to-day design, construction, rehabilitation, maintenance, and management of pavements.

Primary Topic: Materials-Concrete

Description: As part of the FHWA ASR Development and Deployment Program, two sites were built to study ASR in new concrete construction. Concrete blocks were produced with a range of aggregates and cementitious materials and placed on outdoor exposure sites at the University of Hawaii in Manoa on the island of Oahu and at a DOT storage facility in Lawrence, Massachusetts. The main purpose of these studies was to (i) provide information on the reactivity of local aggregates which could be used as a benchmark to calibrate standard la boratory tests, (ii) determine the efficacy of various preventive measures for controlling ASR expansion, and (iii) provide data to validate guidelines such as AASHTO PP65-11. This document presents the preliminary findings from the Oahu and Lawrence exposure sites.

FHWA Publication Number: FHWA-HIF-14-004

Publication Year: 2013

Document Links: PDF (file size: 1 mb)

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Updated: 07/26/2011
 

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United States Department of Transportation - Federal Highway Administration